Month	Percent
1978-02-01	30.5398083306634
1978-03-01	30.7125093418026
1978-04-01	30.8558818093861
1978-05-01	31.0717159902124
1978-06-01	31.2790639640480
1978-07-01	31.4335603320547
1978-08-01	31.6403733922816
1978-09-01	31.6275987615885
1978-10-01	31.6801676279351
1978-11-01	31.8529569770678
1978-12-01	30.2051743362403
1979-01-01	31.8267997486421
1979-02-01	30.9204651807502
1979-03-01	30.8561699680731
1979-04-01	31.1332827451384
1979-05-01	31.5458335206798
1979-06-01	31.5762412010882
1979-07-01	31.6116368824501
1979-08-01	32.0502782927396
1979-09-01	31.0892430669328
1979-10-01	31.2277830916893
1979-11-01	31.3396963962595
1979-12-01	30.0250471291280
1980-01-01	31.4531555849471
1980-02-01	30.4491186249427
1980-03-01	30.1603845084611
1980-04-01	30.8757988852298
1980-05-01	30.3752740294428
1980-06-01	30.6239759751665
1980-07-01	30.5106225002866
1980-08-01	30.8419920648423
1980-09-01	30.0052109490742
1980-10-01	30.8635874930513
1980-11-01	30.9182535593390
1980-12-01	29.3907797068432
1981-01-01	31.2470445602201
1981-02-01	30.3746267042666
1981-03-01	29.9880643487286
1981-04-01	30.3992875936381
1981-05-01	30.6034429209752
1981-06-01	30.9211675738262
1981-07-01	30.6961052042760
1981-08-01	31.0956699492873
1981-09-01	29.9592160009052
1981-10-01	30.8336722077773
1981-11-01	31.0477289875992
1981-12-01	29.7739394230937
1982-01-01	31.3180357080822
1982-02-01	30.2294293387625
1982-03-01	29.9283957053715
1982-04-01	30.9401735470392
1982-05-01	30.8091943381977
1982-06-01	31.2366278521759
1982-07-01	31.2114968954658
1982-08-01	31.6932122993923
1982-09-01	30.6902829822323
1982-10-01	30.7636040490994
1982-11-01	31.1740161347461
1982-12-01	30.0153499579309
1983-01-01	31.8612528792737
1983-02-01	30.5010131295984
1983-03-01	30.3304102489708
1983-04-01	31.2509927205488
1983-05-01	31.0225548760843
1983-06-01	31.5166134016666
1983-07-01	31.3262921303617
1983-08-01	31.9280027966250
1983-09-01	30.6110366221320
1983-10-01	31.5669775297037
1983-11-01	31.5090083405064
1983-12-01	30.1553999634353
1984-01-01	31.9248687275455
1984-02-01	30.7633167181353
1984-03-01	29.9368148336997
1984-04-01	30.5109820543873
1984-05-01	30.8378334071211
1984-06-01	30.9079448359155
1984-07-01	31.0645100657475
1984-08-01	31.6870826775118
1984-09-01	30.5222781194200
1984-10-01	31.2971026220500
1984-11-01	31.2108534090699
1984-12-01	30.1841937924047
1985-01-01	31.6924415223556
1985-02-01	30.2798523378547
1985-03-01	29.8690839750074
1985-04-01	31.1423478393683
1985-05-01	30.6439872256784
1985-06-01	30.7238353623323
1985-07-01	30.8313157324733
1985-08-01	31.0908868953041
1985-09-01	29.7921533473715
1985-10-01	30.7998275201226
1985-11-01	29.7915777751841
1985-12-01	29.1311561057470
1986-01-01	30.4090812431401
1986-02-01	29.1097253296520
1986-03-01	28.5553105336198
1986-04-01	28.6947338833791
1986-05-01	29.0321558653893
1986-06-01	29.1682705896503
1986-07-01	29.1445849235962
1986-08-01	29.8459735647974
1986-09-01	28.5348102754339
1986-10-01	29.1337936377588
1986-11-01	29.2763510363919
1986-12-01	27.9200699569884
1987-01-01	29.8865373975738
1987-02-01	28.6567870766087
1987-03-01	27.7546465880412
1987-04-01	28.5731666907712
1987-05-01	28.8351042208221
1987-06-01	29.0217778340332
1987-07-01	28.6753384765804
1987-08-01	29.5901084403944
1987-09-01	28.9411032930656
1987-10-01	29.2164021932270
1987-11-01	29.5313417947225
1987-12-01	27.7525881089363
1988-01-01	29.0907647367800
1988-02-01	28.4979714431149
1988-03-01	27.3709240816844
1988-04-01	27.5688183418864
1988-05-01	28.3237186865896
1988-06-01	28.4527879128852
1988-07-01	28.9589221578017
1988-08-01	29.1270235004478
1988-09-01	27.7996247679720
1988-10-01	28.5926193274436
1988-11-01	28.5628043961489
1988-12-01	27.0231062083253
1989-01-01	28.5837439764769
1989-02-01	27.3529341875308
1989-03-01	27.3095033198037
1989-04-01	27.2984499309973
1989-05-01	27.0423153981370
1989-06-01	27.5992302965527
1989-07-01	27.3970541125774
1989-08-01	27.7632965960818
1989-09-01	26.5059078517209
1989-10-01	27.3389078139842
1989-11-01	27.0429126706343
1989-12-01	25.9931119566496
1990-01-01	27.5671006551833
1990-02-01	26.4798504771561
1990-03-01	26.3550237053531
1990-04-01	26.4926068158931
1990-05-01	26.2606403250646
1990-06-01	26.5366706935342
1990-07-01	26.2033549523502
1990-08-01	27.0007008212170
1990-09-01	25.9704592462756
1990-10-01	26.7544993027366
1990-11-01	26.8181341652394
1990-12-01	25.4562909008539
1991-01-01	27.3290986319335
1991-02-01	26.4078787379595
1991-03-01	26.3561142252071
1991-04-01	26.1616001021755
1991-05-01	26.6895424436802
1991-06-01	27.3934449893622
1991-07-01	27.8913540690821
1991-08-01	27.7044442054683
1991-09-01	26.5323502726618
1991-10-01	27.7188515980736
1991-11-01	27.8594847595204
1991-12-01	26.1790908612595
1992-01-01	27.5649903793963
1992-02-01	26.6822742858171
1992-03-01	26.7721113522692
1992-04-01	27.1767832714346
1992-05-01	27.2965494712348
1992-06-01	27.3536240419756
1992-07-01	27.0881972015692
1992-08-01	27.7293284287242
1992-09-01	26.7607099806058
1992-10-01	27.2981651152898
1992-11-01	28.0096565532667
1992-12-01	26.3861801704292
1993-01-01	27.5188668027194
1993-02-01	27.2390999833412
1993-03-01	26.9820476019205
1993-04-01	28.0609285252349
1993-05-01	27.7317849529917
1993-06-01	27.7731823714653
1993-07-01	27.9061051751004
1993-08-01	28.2459209037020
1993-09-01	26.8746131954364
1993-10-01	27.2427842189185
1993-11-01	27.2750421640504
1993-12-01	26.1189050830155
1994-01-01	27.4175901455115
1994-02-01	26.5447314831922
1994-03-01	26.4412973843727
1994-04-01	27.0532884538479
1994-05-01	27.1002582146799
1994-06-01	27.1478590025748
1994-07-01	26.7302664800863
1994-08-01	27.6580475130044
1994-09-01	25.8769704972656
1994-10-01	27.0326724552348
1994-11-01	27.0288543921351
1994-12-01	25.6670411466731
1995-01-01	27.0803600007012
1995-02-01	25.8526980118769
1995-03-01	25.9696957192374
1995-04-01	26.1512309654265
1995-05-01	26.1679071982691
1995-06-01	26.1568459835122
1995-07-01	26.2062466815201
1995-08-01	26.6156526475337
1995-09-01	25.3194590955496
1995-10-01	26.1982937166557
1995-11-01	25.7749093345363
1995-12-01	24.9451021083694
1996-01-01	26.2003514730701
1996-02-01	25.4758370125444
1996-03-01	25.5967497723364
1996-04-01	26.1160057701884
1996-05-01	26.0053693830101
1996-06-01	26.2727757709403
1996-07-01	26.1165002408343
1996-08-01	26.4318388278340
1996-09-01	25.4974662529342
1996-10-01	26.1994752572899
1996-11-01	26.5770756791995
1996-12-01	25.1441069081842
1997-01-01	26.4393845782612
1997-02-01	25.6558605906073
1997-03-01	25.8408704039010
1997-04-01	26.2218083756064
1997-05-01	26.5027186993260
1997-06-01	26.7463154482303
1997-07-01	26.6001418392167
1997-08-01	27.6044841283519
1997-09-01	25.9360100224376
1997-10-01	26.9362730878952
1997-11-01	26.6226170559911
1997-12-01	25.7791868145395
1998-01-01	27.0458543961954
1998-02-01	26.3377141056354
1998-03-01	26.3804452726246
1998-04-01	26.5727433529634
1998-05-01	26.6222537035918
1998-06-01	26.5114581152271
1998-07-01	26.5192006257174
1998-08-01	27.1882969784294
1998-09-01	25.5132274740404
1998-10-01	26.5394768005124
1998-11-01	26.7887526665975
1998-12-01	25.7936868255502
1999-01-01	27.2671981979035
1999-02-01	26.4592010200188
1999-03-01	26.4883619305635
1999-04-01	26.6864720899917
1999-05-01	26.9753764867278
1999-06-01	26.9400206605093
1999-07-01	26.8852256413218
1999-08-01	27.4261981080229
1999-09-01	25.8291921481479
1999-10-01	26.6370575850161
1999-11-01	26.9229976636752
1999-12-01	25.4399603284835
2000-01-01	27.2444773482448
2000-02-01	26.2462711729567
2000-03-01	26.1352915943422
2000-04-01	26.0624033525532
2000-05-01	26.2913099182064
2000-06-01	26.2230922006931
2000-07-01	25.8686360941287
2000-08-01	26.5243292727157
2000-09-01	25.3188068978018
2000-10-01	26.3656890340385
2000-11-01	26.7577705530556
2000-12-01	25.4478624355675
2001-01-01	27.0032379984971
2001-02-01	25.8897975644811
2001-03-01	26.1789189302271
2001-04-01	25.5965005821054
2001-05-01	25.7783667025936
2001-06-01	25.7894870258224
2001-07-01	26.0388911909490
2001-08-01	26.4541670777460
2001-09-01	25.3229861304940
2001-10-01	25.8885918884456
2001-11-01	26.2298718691219
2001-12-01	25.1640436591578
2002-01-01	26.0494609876026
2002-02-01	25.5411394909371
2002-03-01	25.8558388144401
2002-04-01	26.1354409297953
2002-05-01	26.2255988339288
2002-06-01	25.9586994720435
2002-07-01	26.4144903627616
2002-08-01	26.4117310588163
2002-09-01	25.1403048394262
2002-10-01	26.0895718472426
2002-11-01	25.8556906323910
2002-12-01	24.5476656756586
2003-01-01	25.3960575538669
2003-02-01	24.7119779738801
2003-03-01	25.1894083393783
2003-04-01	25.4828885422849
2003-05-01	25.4569032746097
2003-06-01	25.7207380323661
2003-07-01	26.0580121793579
2003-08-01	26.3844647330721
2003-09-01	25.1047383073232
2003-10-01	25.7310598326261
2003-11-01	26.0983832526305
2003-12-01	24.7938285099622
2004-01-01	26.1083561350102
2004-02-01	25.4513658116153
2004-03-01	25.5186110372251
2004-04-01	25.6272624397897
2004-05-01	25.7093450246724
2004-06-01	25.7929217688828
2004-07-01	25.9178691133730
2004-08-01	26.5330555550365
2004-09-01	25.0454134504482
2004-10-01	25.6297448652217
2004-11-01	25.7611790070777
2004-12-01	24.4839999973205
2005-01-01	25.4708575215038
2005-02-01	24.6315769651992
2005-03-01	24.3897280725440
2005-04-01	24.4685953185008
2005-05-01	24.5880202581865
2005-06-01	24.5575092328011
2005-07-01	24.8084902068412
2005-08-01	25.0603928998759
2005-09-01	23.9522263512785
2005-10-01	24.6940975435622
2005-11-01	24.9060582407826
2005-12-01	23.7127939331771
2006-01-01	24.9259863421658
2006-02-01	24.1779686838028
2006-03-01	24.1111497058035
2006-04-01	24.3632670576821
2006-05-01	24.3110700669969
2006-06-01	24.2035257920105
2006-07-01	24.2626144354267
2006-08-01	24.6674089944248
2006-09-01	23.3178636738057
2006-10-01	24.3953720543045
2006-11-01	24.6104643995029
2006-12-01	23.0328990321356
2007-01-01	24.5214110322666
2007-02-01	23.6639793267645
2007-03-01	23.7268951520738
2007-04-01	23.9148771143353
2007-05-01	23.8294954754638
2007-06-01	23.9427822359716
2007-07-01	24.0893695640307
2007-08-01	24.4183626543277
2007-09-01	23.2061687085340
2007-10-01	23.8621941169631
2007-11-01	23.9166438886766
2007-12-01	22.6106910971698
2008-01-01	23.8079043169221
2008-02-01	23.3460291150741
2008-03-01	23.3869092823673
2008-04-01	23.2941449955862
2008-05-01	23.4989070471332
2008-06-01	23.3771293621216
2008-07-01	23.6589165858816
2008-08-01	24.1740319383806
2008-09-01	23.0448490743862
2008-10-01	23.5938381932847
2008-11-01	23.9906618322367
2008-12-01	22.7877623368972
2009-01-01	23.9074597541944
2009-02-01	22.8511197246844
2009-03-01	23.0529943067249
2009-04-01	23.3878799470551
2009-05-01	23.3431646508594
2009-06-01	23.7337827824292
2009-07-01	23.9698990064281
2009-08-01	24.5577092185431
2009-09-01	23.4564565420512
2009-10-01	23.9709437770973
2009-11-01	24.1844261289727
2009-12-01	22.9505451451590
2010-01-01	24.0526013413102
2010-02-01	23.4420641229384
2010-03-01	23.4834443482137
2010-04-01	23.6739330199509
2010-05-01	23.9077249558372
2010-06-01	23.8505523374010
2010-07-01	23.7813573606843
2010-08-01	24.2774558042625
2010-09-01	23.0227342044719
2010-10-01	23.2792802825515
2010-11-01	23.5694147825428
2010-12-01	22.4444269378559
2011-01-01	23.6256579896152
2011-02-01	22.9282779785141
2011-03-01	22.9016104068278
2011-04-01	23.3975637786403
2011-05-01	23.3581858725960
2011-06-01	23.5173331168183
2011-07-01	23.5286478904618
2011-08-01	23.9940892256426
2011-09-01	22.8277785726867
2011-10-01	23.4050313275825
2011-11-01	23.7787804172073
2011-12-01	23.0154788811003
2012-01-01	24.0315145819352
2012-02-01	23.2818584591722
2012-03-01	23.1514752520588
2012-04-01	23.6264809308059
2012-05-01	23.2609819623125
2012-06-01	23.7554349639555
2012-07-01	23.7797909077683
2012-08-01	24.4879303486252
2012-09-01	22.9725126405540
2012-10-01	23.6066248091245
2012-11-01	24.0319373587635
2012-12-01	22.8770618683456
2013-01-01	23.8933981234734
2013-02-01	23.0480159145865
2013-03-01	23.1754308081444
2013-04-01	23.2880408495650
2013-05-01	23.4428666325620
2013-06-01	23.5267668014335
2013-07-01	23.8322524620282
2013-08-01	24.3455107732217
2013-09-01	23.3114289060195
2013-10-01	23.7499865646421
2013-11-01	24.1586011819796
2013-12-01	23.3974188840214
2014-01-01	24.2856861116911
2014-02-01	23.2412081338787
2014-03-01	23.3932163411424
2014-04-01	23.7143728130329
2014-05-01	23.7467901540732
2014-06-01	23.7805479850706
2014-07-01	23.7169738036566
2014-08-01	23.7984509316852
2014-09-01	23.9586926853998
2014-10-01	23.8342849969888
2014-11-01	23.9020349845669
2014-12-01	22.9352878380093
2015-01-01	23.8890870075228
2015-02-01	22.5064176213751
2015-03-01	22.8945858637252
2015-04-01	23.1255810365319
2015-05-01	22.9529015086360
2015-06-01	23.2632718246090
2015-07-01	22.9803799890269
2015-08-01	23.5525971003544
2015-09-01	23.3112169391575
2015-10-01	23.0459962517109
2015-11-01	22.9220787963679
2015-12-01	22.2481098809832
2016-01-01	23.1986271016901
2016-02-01	22.2368767633536
2016-03-01	22.7554750536857
2016-04-01	22.9316952580567
2016-05-01	22.8192243707388
2016-06-01	23.0459281781803
2016-07-01	23.1479012347230
2016-08-01	23.7011645375621
2016-09-01	23.5792583995988
2016-10-01	23.5465159131798
2016-11-01	23.2322379970921
2016-12-01	22.4433812432072
2017-01-01	23.7453760105847
2017-02-01	22.4199061261386
2017-03-01	22.5129910869376
2017-04-01	22.6251678208109
2017-05-01	22.5579259838722
2017-06-01	22.6273188113567
2017-07-01	22.7067293018171
2017-08-01	22.8722498969992
2017-09-01	22.5078225409780
2017-10-01	22.6736365115906
2017-11-01	22.1676429137173
2017-12-01	21.2558272569402
2018-01-01	22.4478930848629
2018-02-01	21.2384852497718
2018-03-01	21.7219671772504
2018-04-01	21.8712754160665
2018-05-01	21.9059566942735
2018-06-01	21.8840118956582
2018-07-01	22.2043740972857
2018-08-01	22.3777827186092
2018-09-01	22.4072753719769